CN216351782U

CN216351782U - Charging roller structure

Info

Publication number: CN216351782U
Application number: CN202122738799.2U
Authority: CN
Inventors: 张生财
Original assignee: Zhuhai Hongtu Electronic Technology Co ltd
Current assignee: Zhuhai Hongtu Electronic Technology Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-19
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a charging roller structure, which comprises a metal core, an end cover and a rubber sleeve, wherein the metal core is arranged on the end cover; the rubber sleeve is provided with an inserting cavity, and the metal core is inserted into the inserting cavity; the end covers are arranged at two ends of the metal core and are in contact with the metal core and the rubber sleeve; the rubber sleeve comprises an electroplated layer and a conductive elastic layer, the end face of the metal core is provided with a spiral concave line, the electroplated layer of the rubber sleeve is in contact with the metal core, the electroplated layer is provided with a spiral convex line, and the spiral concave line is meshed with the spiral convex line to enable the rubber sleeve and the metal core to be assembled into a whole; the electroplated layer is provided with a raised head, the metal core is provided with a notch, and the raised head is connected with the notch when the metal core is arranged in the splicing cavity. The novel multifunctional combined tool has the advantages of simple structure, excellent effect, convenience in disassembly, reasonable design and the like; therefore, the product has excellent technical and economic performance.

Description

Charging roller structure

[ technical field ] A method for producing a semiconductor device

The present invention generally relates to a charging roller structure.

[ background of the utility model ]

The core component of the imaging device is an organic photoconductive drum which is an important basis for forming images (electrostatic latent images and toner images), the basic structure of the photoconductive drum is composed of a conductive substrate (an aluminum cylinder or other metal materials), a photoconductive layer and a protective layer, the photoconductive layer is made of photosensitive materials, has high resistivity in a dark environment and is similar to an insulator, the photoconductive layer can quickly become a conductor after being irradiated by light, the charging device charges the photoconductive layer uniformly before exposure, the surface potential of the exposed part becomes low to form a black area on the image after being irradiated by light, the charge is released to the ground by the conductive substrate, the surface potential of the unexposed part is high, the white area on the formed image still maintains the original charge, thus a potential difference latent image is formed on the surface of the photoconductive drum, the function of the charging roller is to charge the surface of the photoconductive drum uniformly, and the charging roller is a novel environment-friendly charging mode, the mode reduces the generation of ozone, has uniform charging and no noise, and is widely applied to laser printers and low-speed copiers. The metal core of ordinary copier charge roller is connected between with the rubber sleeve and is used glue more and fix, and this kind of connected mode not only pollutes great, and connects unstablely, appears becoming flexible easily after long-time the use, leads to the result of use variation, and how to solve this problem has just become the direction of our research.

[ Utility model ] content

In order to solve at least one existing problem, a new technical scheme is provided, and the charging roller structure adopts the following technical scheme:

a charging roller structure comprises a metal core, an end cover and a rubber sleeve; the rubber sleeve is provided with an inserting cavity, and the metal core is inserted into the inserting cavity; the end covers are arranged at two ends of the metal core and are in contact with the metal core and the rubber sleeve;

the rubber sleeve comprises an electroplated layer and a conductive elastic layer, the end face of the metal core is provided with a spiral concave line, the electroplated layer of the rubber sleeve is in contact with the metal core, the electroplated layer is provided with a spiral convex line, and the spiral concave line is meshed with the spiral convex line to enable the rubber sleeve and the metal core to be assembled into a whole; the electroplated layer is provided with a raised head, the metal core is provided with a notch, and the raised head is connected with the notch when the metal core is arranged in the splicing cavity.

Preferably, the end cap has a socket into which an end of the metal core is inserted.

Preferably, a plurality of pin heads extend into the insertion opening of the end cover, pin openings are formed in the end portion of the metal core, the pin heads are connected with the pin openings, and the number of the pin openings corresponds to the number of the pin heads.

Preferably, the rubber sleeve is located between the two end caps.

Preferably, the diameter of the two ends of the metal core is larger than that of the contact part of the metal core and the rubber sleeve.

Compared with the background technology, the utility model has the following beneficial effects:

by adopting the scheme, when the charging roller rotates, the whole charging roller rotates through the connection of the pin head and the pin opening, the meshing of the spiral concave grains and the spiral convex grains and the connection of the raised head and the notch, the traditional glue bonding and fixing mode is replaced, the problem that the bonding mode is easy to loosen after being used for a long time is solved, and the number of the pin openings corresponds to the number of the pin heads. It has the advantages of simple structure, excellent effect, reasonable design and the like; therefore, the product has excellent technical and economic performance.

[ description of the drawings ]

FIG. 1 is a schematic cross-sectional view of a charging roller structure according to a preferred embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a part of a charging roller according to a preferred embodiment of the present invention.

[ detailed description ] embodiments

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The technical scheme and the beneficial effects of the utility model are clearer and clearer by further describing the specific embodiment of the utility model with the accompanying drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.

The preferred embodiment provided by the present invention: as shown in fig. 1 and 2, a charging roller structure includes a metal core 1, an end cap 2 and a rubber sleeve 3; the rubber sleeve 3 is provided with an insertion cavity 33, and the metal core 1 is inserted in the insertion cavity 33; the end covers 2 are arranged at two ends of the metal core 1, the rubber sleeve 3 is positioned between the two end covers 2, and the end covers 2 are in contact with the metal core 1 and the rubber sleeve 3.

The rubber sleeve 3 comprises an electroplated layer 31 and a conductive elastic layer 32, the end surface of the metal core 1 is provided with a spiral concave line 34, the electroplated layer 31 of the rubber sleeve 3 is contacted with the metal core 1, the electroplated layer 31 is provided with a spiral convex line 35, and the spiral concave line 34 is meshed with the spiral convex line 35 to enable the rubber sleeve 3 and the metal core 1 to be assembled into a whole; the electroplated layer 31 is provided with a raised head 36, the metal core 1 is provided with a notch 37, and the raised head 36 is connected with the notch 37 when the metal core 1 is installed in the plugging cavity. The diameters of the two ends of the metal core 1 are larger than the diameter of the contact part of the metal core 1 and the rubber sleeve 3, so that the metal core 1 is prevented from being separated from the rubber sleeve 3.

The end cap 2 has a socket 21, and the end of the metal core 1 is inserted into the socket 21. A plurality of pin heads 22 extend into a socket 21 of the end cover 2, a pin opening 11 is formed in the end part of the metal core 1, the pin heads 22 are connected with the pin opening 11 to strengthen the connection between the end cover 2 and the metal core 1, when the charging roller rotates, the whole rotation is realized through the connection between the pin heads and the pin openings, the spiral concave grains are meshed with the spiral convex grains and the connection between the raised heads and the concave recesses, the traditional glue bonding and fixing mode is replaced, the problem that the bonding mode is easy to loosen after long-time use is solved, and the number of the pin openings corresponds to the number of the pin heads.

In the description of the specification, reference to the description of "one embodiment", "preferably", "an example", "a specific example" or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and modifications and substitutions based on the known technology in the field are within the scope of the present invention, which should be limited by the claims.

Claims

1. A charging roller structure characterized in that: it comprises a metal core, an end cover and a rubber sleeve; the rubber sleeve is provided with an inserting cavity, and the metal core is inserted into the inserting cavity; the end covers are arranged at two ends of the metal core and are in contact with the metal core and the rubber sleeve;

2. The charging roller structure according to claim 1, characterized in that: the end cap is provided with a socket, and the end part of the metal core is inserted into the socket.

3. The charging roller structure according to claim 2, characterized in that: a plurality of pin heads extend into the insertion opening of the end cover, pin openings are formed in the end portion of the metal core and connected with the pin openings, and the number of the pin openings corresponds to that of the pin heads.

4. The charging roller structure according to claim 3, characterized in that: the rubber sleeve is positioned between the two end covers.

5. The charging roller structure according to claim 4, wherein: the diameters of the two ends of the metal core are larger than the diameter of the contact part of the metal core and the rubber sleeve.